SU1551555A1 - Mould for making ring sealing collars having v-shaped working edge - Google Patents

Abstract

The invention relates to the manufacture of rubber technical products and is intended for the manufacture of annular rubber sealing sleeves with a V-shaped working edge. The purpose of the invention is to improve the quality of the cuffs. For this, the bottom plate is made of two parts. The upper part 3 of the lower plate with the outer liner 4 is located above the lower part 5 of the lower plate with the inner liner 6 with the possibility of relative axial movement. The annular groove for forming the V-shaped working edge of the cuff is made in the inner liner 6 at its upper end. After vulcanization, the punch 1 and the middle ring part 2 are removed from the mold. Then the upper part 3 of the bottom plate is removed. On the outer liner 4, the cuff 10 is ready. 1 Il.

Description

The invention relates to the manufacture of rubber technical products and is intended for the manufacture of annular rubber sealing sleeves with a V-shaped working edge.

The purpose of the invention is to improve the quality of the sealing cuffs.

The drawing shows the proposed mold.

The mold contains a punch 1, a middle annular part 2, a lower plate consisting of two parts, with a floor that is arranged with the possibility of relative axial movement, with the upper

ten

13. A rubber blank is laid in the cavities and on the frame 13. Next, the punch 1 is lowered. Thereafter, the mold is fed under the press, where the cuff 10 is molded and cured. After curing, the mold is pushed out of the press zone, the punch 1 and the middle ring 2 are removed. an insert 4 on which the finished cuff 10 is located, which is easily removable.

The present invention makes it possible to exclude cutting of the cuff having a V-shaped working edge made non-part 3 of the lower plate made with the outer liner 4 for shaping the inner 15, depending on its position and angle between the cuff cavity, and the lower part 5 The opening of the bottom plate is made with an inner liner 6 which forms the V-shaped working edge of the cuff. The annular groove for forming the V-shaped working edge of the cuff is made in the inner 20 liner 6 at its upper end, where the line 7 intersects the upper plane 8 and the lower plane 9, forming a V-shaped annular groove

the design of the working edge of the cuff 10. 25 TU with a punch, the middle annular part. In this case, the support surface 11 is a punch and bottom plate with a concentrically arranged outer and inner liners, the outer of which has a protrusion for the design of the inner cavity of the cuff, and an annular groove for molding Vpress molds, make the mold universal, improve its performance and simplify manufacture.

Claims (2)

Invention Formula 1. A mold for the manufacture of annular sealing cups with a V-shaped working edge, comprising an upper plate 1 in contact with the upper end 12 of the inner liner 6, is located above the line 7 of the intersection of the upper plane 8 and the lower plane 9, forming V-shaped annular groove. Moreover, the 30 shaped working edge of the cuff, the molding 7 is from the upper end 12. of the inner liner 6 at a distance of 1 / 5-1 / 10 of the length of the upper defining plane 8. The mold works as follows. On the lower part 5 of the lower plate with the inner liner 6 is installed the upper part 3 of the lower plate with the outer liner 4. Then the main plate is installed so that, in order to improve the quality of the cuffs, the lower plate is made of two parts, which are arranged with relative axial displacement, the outer shell and the inner liner are connected to its lower part. 2. A mold according to claim 1, characterized in that the annular groove for forming The annular part 2. If the cuff 10 has a 4o V-shaped working edge of the cuff has a frame 13, then the metal frame of its end face is located on the external insert of the yen in the inner liner at its top 4. 13. A rubber blank is laid in the cavities and on the frame 13. Next, the punch 1 is lowered. Thereafter, the mold is fed under the press, where the cuff 10 is molded and cured. After curing, the mold is pushed out of the press zone, the punch 1 and the middle ring 2 are removed. an insert 4 on which the finished cuff 10 is located, which is easily removable. The present invention allows to exclude cutting of the cuff having a V-shaped working edge, made regardless of its position and angle between its forming sides, when opening depending on its position and angle between its constituent sides, when disclosing TU with punch, middle ring part, lower plate with concisely spaced outer and inner liners, the outer part of which has a protrusion for shaping the inner cavity of the cuff, and an annular groove for molding the V-mold, make the mold universal, improve its performance and simplify manufacturing. Invention Formula 1. A mold for the manufacture of annular sealing cups with a V-shaped working edge, containing the upper one, in order to improve the quality of the cuffs, the lower plate is made of two parts that are floor-spaced with relative axial movement, and It is attached to the upper part of the bottom plate, and the inner liner is to its lower part. 2. A mold according to claim 1, characterized in that the annular groove for forming The V-shaped lip of the cuff is made in the inner liner at its upper end.